EP1785598A4 - Variable valve gear - Google Patents

Variable valve gear

Info

Publication number: EP1785598A4
Authority: EP; European Patent Office
Prior art keywords: variable valve; valve gear; gear; variable; valve
Prior art date: 2004-08-31
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP05776816A

Other languages

German (de)

French (fr)

Other versions

EP1785598B1 (en

EP1785598A1 (en

Inventor

Manabu Tateno

Toshiaki Asada

Shuichi Ezaki

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Toyota Motor Corp

Original Assignee

Toyota Motor Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2004-08-31

Filing date

2005-08-30

Publication date

2009-11-18

2005-08-30 Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp

2007-05-16 Publication of EP1785598A1 publication Critical patent/EP1785598A1/en

2009-11-18 Publication of EP1785598A4 publication Critical patent/EP1785598A4/en

2010-12-15 Application granted granted Critical

2010-12-15 Publication of EP1785598B1 publication Critical patent/EP1785598B1/en

Status Not-in-force legal-status Critical Current

2025-08-30 Anticipated expiration legal-status Critical

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
- F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
- F01L13/0026—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio by means of an eccentric
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
- F01L2013/0068—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "BMW-Valvetronic" type
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Valve Device For Special Equipments (AREA)

EP05776816A 2004-08-31 2005-08-30 Variable valve gear Not-in-force EP1785598B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2004252559		2004-08-31
PCT/JP2005/016185 WO2006025565A1 (en)	2004-08-31	2005-08-30	Variable valve gear

Publications (3)

Publication Number	Publication Date
EP1785598A1 EP1785598A1 (en)	2007-05-16
EP1785598A4 true EP1785598A4 (en)	2009-11-18
EP1785598B1 EP1785598B1 (en)	2010-12-15

Family

ID=36000203

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP05776816A Not-in-force EP1785598B1 (en)	2004-08-31	2005-08-30	Variable valve gear

Country Status (6)

Country	Link
US (1)	US7299775B2 (en)
EP (1)	EP1785598B1 (en)
JP (1)	JP4211846B2 (en)
CN (1)	CN100417788C (en)
DE (1)	DE602005025368D1 (en)
WO (1)	WO2006025565A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4697011B2 (en) *	2006-04-03	2011-06-08	トヨタ自動車株式会社	Variable valve mechanism
JP4935198B2 (en) *	2006-06-09	2012-05-23	トヨタ自動車株式会社	Control device for variable valve mechanism
JP2008014291A (en) *	2006-07-10	2008-01-24	Toyota Motor Corp	Variable valve gear for internal combustion engine
JP4766007B2 (en)	2007-06-14	2011-09-07	トヨタ自動車株式会社	Variable valve gear
JP4442659B2 (en)	2007-08-09	2010-03-31	トヨタ自動車株式会社	Exhaust gas purification device for internal combustion engine
JP5331343B2 (en) *	2007-12-27	2013-10-30	ダイムラー・アクチェンゲゼルシャフト	Variable valve operating device for internal combustion engine
KR100969018B1 (en) *	2008-05-22	2010-07-09	현대자동차주식회사	Continuous variable valve lift device
JP2009281343A (en)	2008-05-26	2009-12-03	Hitachi Automotive Systems Ltd	Control apparatus for internal combustion engine
JP4937188B2 (en)	2008-05-26	2012-05-23	日立オートモティブシステムズ株式会社	Variable valve operating device for internal combustion engine
JP5028355B2 (en) *	2008-08-01	2012-09-19	株式会社オティックス	Variable valve mechanism
JP5115748B2 (en) *	2009-02-13	2013-01-09	スズキ株式会社	Variable valve operating device for internal combustion engine
JP5375314B2 (en) *	2009-05-01	2013-12-25	トヨタ自動車株式会社	Variable valve gear
SE534761C2 (en) *	2010-04-19	2011-12-13	Scania Cv Ab	Valve lift device of an internal combustion engine
JP5561480B2 (en) *	2010-11-08	2014-07-30	スズキ株式会社	Variable valve operating device for internal combustion engine
KR101234651B1 (en) *	2010-11-30	2013-02-19	기아자동차주식회사	Continuous variable valve lift apparatus
US8640660B2 (en)	2011-03-10	2014-02-04	Jesper Frickmann	Continuously variable valve actuation apparatus for an internal combustion engine
US9574468B2 (en)	2012-10-17	2017-02-21	Toyota Motor Engineering & Manufacturing North America, Inc.	Variable valve operation control method and apparatus
WO2015093265A1 (en) *	2013-12-20	2015-06-25	ヤマハ発動機株式会社	Valve gear for engine
WO2015093290A1 (en) *	2013-12-20	2015-06-25	ヤマハ発動機株式会社	Valve gear for engine
DE112015003880T5 (en)	2014-08-26	2017-05-04	Hitachi Automotive Systems, Ltd.	ACTUATOR FOR GIVEN ENGINE MECHANISM FOR COMBUSTION ENGINE AND METHOD FOR ASSEMBLING THE ACTUATOR
CN104791110A (en) *	2015-03-23	2015-07-22	朱譞晟	Valve driving mechanism forming method with independently adjustable valve stroke and timing
DE102017119348A1 (en) *	2017-08-24	2019-02-28	Man Truck & Bus Ag	Variable valve train
JP6408095B2 (en) *	2017-09-07	2018-10-17	日立オートモティブシステムズ株式会社	Actuator with variable compression ratio mechanism

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19960742A1 (en) *	1999-12-16	2001-06-21	Iav Gmbh	Variable valve drive, preferably for combustion engine, has pressure roller rotatably mounted in swinging arm with pivot axis fixed relative to cylinder head but adjustable in position
JP2002371816A (en) *	2001-06-14	2002-12-26	Otics Corp	Variable valve mechanism
WO2003008772A1 (en) *	2001-07-17	2003-01-30	Thyssenkrupp Automotive Ag	Variable valve-stroke controller
DE10140635A1 (en) *	2001-08-13	2003-04-24	Rudolf Flierl	Device for independent variable timing adjustment of gas exchange valves of IC engines has valve lifter and crank shaped to make valve acceleration ratio dependent upon set valve stroke
JP2003239712A (en) *	2002-02-18	2003-08-27	Nippon Soken Inc	Valve control device
JP2004108302A (en) *	2002-09-19	2004-04-08	Otics Corp	Variable valve system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6453009A (en) *	1987-08-21	1989-03-01	Honda Motor Co Ltd	Valve timing adjuster for engine
JPH069935Y2 (en)	1987-09-29	1994-03-16	味の素株式会社	Workbench
US5111781A (en) *	1990-03-14	1992-05-12	Suzuki Kabushiki Kaisha	Valve actuating mechanism in four-stroke cycle engine
JPH0674011A (en)	1992-07-03	1994-03-15	Mazda Motor Corp	Valve timing controller of engine
JP3330640B2 (en)	1992-07-06	2002-09-30	マツダ株式会社	Variable engine valve timing device
JP2924489B2 (en) *	1992-09-16	1999-07-26	トヨタ自動車株式会社	Valve train of internal combustion engine
JP3092390B2 (en) *	1993-04-28	2000-09-25	トヨタ自動車株式会社	Variable valve mechanism of internal combustion engine
EP0638706A1 (en)	1993-08-05	1995-02-15	Bayerische Motoren Werke Aktiengesellschaft	Valve actuating mechanism of an internal combustion engine
TW387033B (en) *	1997-06-24	2000-04-11	Honda Motor Co Ltd	Valve operating system in internal combustion engine
JPH1136833A (en) *	1997-07-22	1999-02-09	Otix:Kk	Variable valve system mechanism
JP2001164911A (en) *	1999-12-10	2001-06-19	Yamaha Motor Co Ltd	Valve system of four-cycle engine
DE10347517B3 (en)	2003-10-13	2005-06-02	Siemens Ag	Method and device for monitoring a pulse charging valve of an internal combustion engine
JP4026634B2 (en) *	2004-08-31	2007-12-26	トヨタ自動車株式会社	Variable valve gear

2005
- 2005-08-30 DE DE602005025368T patent/DE602005025368D1/en active Active
- 2005-08-30 WO PCT/JP2005/016185 patent/WO2006025565A1/en active Application Filing
- 2005-08-30 JP JP2006532013A patent/JP4211846B2/en not_active Expired - Fee Related
- 2005-08-30 US US10/578,520 patent/US7299775B2/en not_active Expired - Fee Related
- 2005-08-30 CN CNB2005800018451A patent/CN100417788C/en not_active Expired - Fee Related
- 2005-08-30 EP EP05776816A patent/EP1785598B1/en not_active Not-in-force

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19960742A1 (en) *	1999-12-16	2001-06-21	Iav Gmbh	Variable valve drive, preferably for combustion engine, has pressure roller rotatably mounted in swinging arm with pivot axis fixed relative to cylinder head but adjustable in position
JP2002371816A (en) *	2001-06-14	2002-12-26	Otics Corp	Variable valve mechanism
WO2003008772A1 (en) *	2001-07-17	2003-01-30	Thyssenkrupp Automotive Ag	Variable valve-stroke controller
DE10140635A1 (en) *	2001-08-13	2003-04-24	Rudolf Flierl	Device for independent variable timing adjustment of gas exchange valves of IC engines has valve lifter and crank shaped to make valve acceleration ratio dependent upon set valve stroke
JP2003239712A (en) *	2002-02-18	2003-08-27	Nippon Soken Inc	Valve control device
JP2004108302A (en) *	2002-09-19	2004-04-08	Otics Corp	Variable valve system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006025565A1 *

Also Published As

Publication number	Publication date
WO2006025565A1 (en)	2006-03-09
US20070095311A1 (en)	2007-05-03
JP4211846B2 (en)	2009-01-21
EP1785598B1 (en)	2010-12-15
JPWO2006025565A1 (en)	2008-05-08
US7299775B2 (en)	2007-11-27
CN1906383A (en)	2007-01-31
CN100417788C (en)	2008-09-10
EP1785598A1 (en)	2007-05-16
DE602005025368D1 (en)	2011-01-27

Publication	Publication Date	Title
EP1785598A4 (en)	2009-11-18	Variable valve gear
EP1876380A4 (en)	2011-08-17	Selector valve
EP1914444A4 (en)	2010-04-14	Reduction gear
GB0613871D0 (en)	2006-08-23	Variable choke valve
GB2419195B (en)	2009-10-21	Hydraulic valve arrangement
GB2415516B (en)	2008-12-24	Valve arrangement
GB0414128D0 (en)	2004-07-28	Valve
GB2422444B (en)	2009-09-23	Valve arrangement
GB0425117D0 (en)	2004-12-15	Improved valve
EP2180153A4 (en)	2011-10-05	Variable valve gear
EP1710402A4 (en)	2009-11-11	Variable valve mechanism
GB0417580D0 (en)	2004-09-08	Valve
GB2453285B (en)	2009-09-16	Variable gear
GB2413169C (en)	2008-04-08	Valve
GB2412637B (en)	2007-06-06	Valve
GB2430706B (en)	2010-10-13	Variable valve mechanism
EP1790889A4 (en)	2010-04-21	Valve gear
EP1821014A4 (en)	2012-08-15	Relief valve
GB0406888D0 (en)	2004-04-28	Valve gear
GB0408055D0 (en)	2004-05-12	Valve
GB2435375B (en)	2009-01-07	Improved valve
GB0411506D0 (en)	2004-06-23	Valve
GB0315246D0 (en)	2003-08-06	Valve gear
HUP0401556A2 (en)	2006-04-28	Stepless gear
GB0407957D0 (en)	2004-05-12	Valve

Legal Events

Date	Code	Title	Description
2007-04-13	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2007-05-16	17P	Request for examination filed	Effective date: 20060330
2007-05-16	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE FR GB IT
2007-12-05	DAX	Request for extension of the european patent (deleted)
2007-12-05	RBV	Designated contracting states (corrected)	Designated state(s): DE FR GB IT
2009-11-18	A4	Supplementary search report drawn up and despatched	Effective date: 20091020
2010-06-16	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2010-11-09	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2010-11-12	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2010-12-15	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT
2010-12-15	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D
2011-01-27	REF	Corresponds to:	Ref document number: 602005025368 Country of ref document: DE Date of ref document: 20110127 Kind code of ref document: P
2011-10-21	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2011-10-21	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2011-11-23	26N	No opposition filed	Effective date: 20110916
2012-01-12	REG	Reference to a national code	Ref country code: DE Ref legal event code: R097 Ref document number: 602005025368 Country of ref document: DE Effective date: 20110916
2013-06-12	REG	Reference to a national code	Ref country code: GB Ref legal event code: 746 Effective date: 20130520
2013-07-25	REG	Reference to a national code	Ref country code: DE Ref legal event code: R084 Ref document number: 602005025368 Country of ref document: DE Effective date: 20130522
2014-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20140827 Year of fee payment: 10
2014-11-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20140827 Year of fee payment: 10 Ref country code: FR Payment date: 20140808 Year of fee payment: 10
2014-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20140807 Year of fee payment: 10
2016-03-01	REG	Reference to a national code	Ref country code: DE Ref legal event code: R119 Ref document number: 602005025368 Country of ref document: DE
2016-04-27	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20150830
2016-04-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150830
2016-06-03	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST Effective date: 20160429
2016-07-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160301 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150830
2016-08-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150831